Author: "Nanofab (Nanofab )" - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Nanofab (Nanofab )"' showing total 71 results

Start Over Author "Nanofab (Nanofab )"

71 results on '"Nanofab (Nanofab )"'

1. Reversible Al Propagation in SixGe1–x Nanowires: Implications for Electrical Contact Formation

Author: Thierry Baron, Bruno Fernandez, Masiar Sistani, Eric Robin, Nicolas Pauc, Maria Spies, Bassem Salem, Minh Anh Luong, Alois Lugstein, Martien Den Hertog, Pascal Gentile, Laboratoire d'Etude des Matériaux par Microscopie Avancée (LEMMA ), Modélisation et Exploration des Matériaux (MEM), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Silicon Nanoelectronics Photonics and Structures (SiNaps), PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), Laboratoire des technologies de la microélectronique (LTM ), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Vienna University of Technology (TU Wien), Matériaux, Rayonnements, Structure (NEEL - MRS), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Nanofabrication (NEEL - Nanofab), Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Technical University of Vienna [Vienna] (TU WIEN), Technische Universität Wien (TU Wien), Matériaux, Rayonnements, Structure (MRS), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS), and Nanofab (Nanofab)
Subjects: solid state exchange reaction, Materials science, in-situ transmission electron microscopy, Alloy, Nanowire, 02 engineering and technology, engineering.material, Thermal diffusivity, 01 natural sciences, Si/SixGe1-x heterostructure, Crystallinity, 0103 physical sciences, General Materials Science, 010302 applied physics, Dopant, business.industry, Heterojunction, 021001 nanoscience & nanotechnology, Electrical contacts, Diffusion process, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], engineering, Optoelectronics, solidification, 0210 nano-technology, business
Abstract: International audience; While reversibility is a fundamental concept in thermodynamics, most reactions are not readily reversible, especially in solid state physics. For example, thermal diffusion is a widely known concept, used among others to inject dopant atoms into the substitutional positions in the matrix and improve the device properties. Typically, such a diffusion process will create a concentration gradient extending over increasingly large regions, without possibility to reverse this effect. On the other hand, while the bottom up growth of semiconducting nanowires is interesting, it can still be difficult to fabricate axial heterostructures with high control. In this paper, we report a reversible thermal diffusion process occurring in the solid-state exchange reaction between an Al metal pad and a SixGe1-x alloy nanowire observed by in-situ transmission electron microscopy. The thermally assisted reaction results in the creation of a Si-rich region sandwiched between the reacted Al and unreacted SixGe1-x part, forming an axial Al/Si/SixGe1-x heterostructure. Upon heating or (slow) cooling, the Al metal can repeatably move in and out of the SixGe1-x alloy nanowire while maintaining the rod-like geometry and crystallinity, allowing to fabricate and contact nanowire heterostructures in a reversible way in a single process step, compatible with current Si based technology. This interesting system is promising for various applications, such as phase change memories in an all crystalline system with integrated contacts, as well as Si/SixGe1-x/Si heterostructures for near-infrared sensing applications.
Published: 2020
Full Text: View/download PDF

2. Characterization of Diamond and Silicon Carbide Detectors With Fission Fragments

Author: M. L. Gallin-Martel, Y. H. Kim, L. Abbassi, A. Bes, C. Boiano, S. Brambilla, J. Collot, G. Colombi, T. Crozes, S. Curtoni, D. Dauvergne, C. Destouches, F. Donatini, L. Gallin-Martel, O. Ghouini, J. Y. Hostachy, Ł. W. Iskra, M. Jastrzab, G. Kessedjian, U. Köster, A. Lacoste, A. Lyoussi, S. Marcatili, J. F. Motte, J. F. Muraz, T. Nowak, L. Ottaviani, J. Pernot, A. Portier, W. Rahajandraibe, M. Ramdhane, M. Rydygier, C. Sage, A. Tchoualack, L. Tribouilloy, M. Yamouni, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Institut Laue-Langevin (ILL), ILL, Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), CEA Cadarache, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut des Matériaux, de Microélectronique et des Nanosciences de Provence (IM2NP), Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Nanofab (Nanofab), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), AUTRES, Optique et microscopies (POM), Polish Academy of Sciences (PAN), Semi-conducteurs à large bande interdite (SC2G), ANR-11-LABX-0063,PRIMES,Physique, Radiobiologie, Imagerie Médicale et Simulation(2011), Nanofabrication (NEEL - Nanofab), Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), Istituto Nazionale di Fisica Nucleare (INFN), Optique & Microscopies (NEEL - POM), Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), and Semi-conducteurs à large bande interdite (NEEL - SC2G)
Subjects: Materials science, Silicon, Fission, Physics::Instrumentation and Detectors, QC1-999, Materials Science (miscellaneous), silicon carbide detectors, Biophysics, chemistry.chemical_element, General Physics and Astronomy, engineering.material, 01 natural sciences, radiation-hard detectors, chemistry.chemical_compound, solid-state detectors, 0103 physical sciences, Silicon carbide, Physical and Theoretical Chemistry, Mathematical Physics, 010302 applied physics, [PHYS]Physics [physics], fission fragment, Spectrometer, 010308 nuclear & particles physics, business.industry, Physics, Detector, pulse height defect, Diamond, Neutron temperature, chemistry, Ionization chamber, heavy-ion detectors, engineering, Optoelectronics, diamond detectors, business
Abstract: International audience; Experimental fission studies for reaction physics or nuclear spectroscopy can profit from fast, efficient, and radiation-resistant fission fragment (FF) detectors. When such experiments are performed in-beam in intense thermal neutron beams, additional constraints arise in terms of target-detector interface, beam-induced background, etc. Therefore, wide gap semi-conductor detectors were tested with the aim of developing innovative instrumentation for such applications. The detector characterization was performed with mass- and energy-separated fission fragment beams at the ILL (Institut Laue Langevin) LOHENGRIN spectrometer. Two single crystal diamonds, three polycrystalline and one diamond-on-iridium as well as a silicon carbide detector were characterized as solid state ionization chamber for FF detection. Timing measurements were performed with a 500-µm thick single crystal diamond detector read out by a broadband amplifier. A timing resolution of ∼10.2 ps RMS was obtained for FF with mass A = 98 at 90 MeV kinetic energy. Using a spectroscopic preamplifier developed at INFN-Milano, the energy resolution measured for the same FF was found to be slightly better for a ∼50-µm thin single crystal diamond detector (∼1.4% RMS) than for the 500-µm thick one (∼1.6% RMS), while a value of 3.4% RMS was obtained with the 400-µm silicon carbide detector. The Pulse Height Defect (PHD), which is significant in silicon detectors, was also investigated with the two single crystal diamond detectors. The comparison with results from α and triton measurements enabled us to conclude that PHD leads to ∼50% loss of the initial generated charge carriers for FF. In view of these results, a possible detector configuration and integration for in-beam experiments has been discussed.
Published: 2021
Full Text: View/download PDF

3. Neuron-gated silicon nanowire field effect transistors to follow single spike propagation within neuronal network

Author: Mireille Albrieux, Anne Briancon Marjollet, Cécile Delacour, Guillaume Bres, Julien Minet, Farida Veliev, Catherine Villard, Thierry Crozes, Thomas Ernst, I. Ionica, Guillaume Becq, Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS), Nanofab (Nanofab), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Electronique (ElecLab), Université de Liège, Institut de Microélectronique, Electromagnétisme et Photonique - Laboratoire d'Hyperfréquences et Caractérisation (IMEP-LAHC ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CHU Sud Saint Pierre [Ile de la Réunion], Cytosquelette et Intégration des Signaux du Micro-Environnement Tumoral - UMR 6032 (CISMET), Centre National de la Recherche Scientifique (CNRS)-Université de Provence - Aix-Marseille 1-Université de la Méditerranée - Aix-Marseille 2, Thermodynamique et biophysique des petits systèmes (TPS), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Institut de Microélectronique, Electromagnétisme et Photonique - Laboratoire d'Hyperfréquences et Caractérisation (IMEP-LAHC), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), HP2, Pole Biol CHU Grenoble (INSERM, U1042), Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Inserm, U1216, Grenoble, France., Institut National de la Santé et de la Recherche Médicale (INSERM), Thermodynamique et biophysique des petits systèmes (NEEL - TPS), Nanofabrication (NEEL - Nanofab), Electronique (NEEL - ElecLab), and ANR-18-CE42-0003,NanoMesh,Nanoelectronique graphene pour des interfaces neuronales multifonctionnelles(2018)
Subjects: Materials science, Silicon, Microfluidics, Nanowire, chemistry.chemical_element, 02 engineering and technology, Local field potential, 01 natural sciences, law.invention, 03 medical and health sciences, law, Nano, 0103 physical sciences, Biological neural network, Premovement neuronal activity, General Materials Science, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, 030304 developmental biology, 010302 applied physics, 0303 health sciences, business.industry, Transistor, 021001 nanoscience & nanotechnology, Condensed Matter Physics, chemistry, Optoelectronics, Field-effect transistor, Spike (software development), 0210 nano-technology, business, Sensitivity (electronics)
Abstract: Silicon nanowire field effect transistors SiNW-FETs provide a local probe for sensing neuronal activity at the subcellular scale, thanks to their nanometer size and ultrahigh sensitivity. The combination with micro-patterning or microfluidic techniques to build model neurons networks above SiNW arrays could allow monitoring spike propagation and tailor specific stimulations, being useful to investigate network communications at multiple scales, such as plasticity or computing processes. This versatile device could be useful in many research areas, including diagnosis, prosthesis, and health security. Using top-down silicon nanowires-based array, we show here the ability to record electrical signals from matured neurons with top-down silicon nanowires, such as local field potential and unitary spike within ex-vivo preparations and hippocampal neurons grown on chip respectively. Furthermore, we demonstrate the ability to guide neurites above the sensors array during 3 weeks of cultures and follow propagation of spikes along cells. Silicon nanowire field effect transistors are obtained by top-down approach with CMOS compatible technology, showing the possibility to implement them at manufacturing level. These results confirm further the potentiality of the approach to follow spike propagation over large distances and at precise location along neuronal cells, by providing a multiscale addressing at the nano and mesoscales.
Published: 2020
Full Text: View/download PDF

4. Développement de moniteurs faisceaux en technologie diamant pour le monitorage de radiothérapies innovantes : hadronthérapie et thérapies 'flash'

Author: Gallin-Martel, Marie-Laure, Bes, A., Bosson, G., Bouvier, J., Collot, J., Curtoni, Sébastien, Dauvergne, Denis, Everaere, Pierre, Gallin-Martel, Laurent, Ghimouz, A., Hoarau, Ch., Lacoste, A., Marcatili, Sara, Muraz, J.-F., Rarbi, F., Rossetto, O., Rosuel, Nicolas, Tribouilloy, L., Yamouni, M., Guertin, Arnaud, Haddad, Ferid, Koumeir, Charbel, Poirier, F., Métivier, Vincent, Servagent, Noël, Motte, J.-F., Abbassi, L., Crozes, T., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Accélérateur pour la Recherche en Radiochimie et Oncologie [Nantes Atlantique] (GIP ARRONAX), Université de Nantes (UN)-Institut de Cancérologie de l'Ouest [Angers/Nantes] (UNICANCER/ICO), UNICANCER-UNICANCER-Hôpital Guillaume-et-René-Laennec [Saint-Herblain], Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Nanofab (Nanofab), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )
Subjects: [PHYS.PHYS.PHYS-MED-PH]Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Abstract: National audience; Au cours d’une séance d’irradiation en hadronthérapie, une partie des ions incidents va subir des réactions de fragmentations nucléaires qui ont pour effet de délocaliser le dépôt de dose dans le patient. C’est donc une source d’incertitude qui peut nuire à une délivrance optimale des traitements.La collaboration Clarys (IP2I CPPM LPSC CREATIS) met au point un système de contrôle en ligne basé sur la détection de gamma prompts émis le long du parcours des ions. Afin de réaliser une mesure de temps de vol absolue (ion + gamma prompt), ClaRys inclut dans son projet le développement d’un hodoscope de marquage de faisceau installé en amont du patient. Il est destiné à fournir une information temporelle et spatiale des ions entrants. Ces informations peuvent être utilisées pour le processus de reconstruction d'image et dans la réduction des bruits de fond.Un premier hodoscope basé sur un maillage de fibres scintillantes lues par des photo-multiplicateurs (PM) a été développé. En raison des limitations du taux de comptage des PM, l'efficacité de détection de l'hodoscope à fibres diminue pour les courants de faisceau élevés. Ces limitations ont conduit au développement d'un hodoscope à base de diamant synthétiques (croissance par dépôt chimique en phase vapeur ou CVD).Les qualités intrinsèques du diamant (rapidité, faible courant de fuite, excellent rapport signal sur bruit, résistance aux radiations, équivalence tissu humain) font de ce semi-conducteur un parfait candidat pour répondre aux exigences de monitorage. L'hodoscope diamant devrait permettre d'atteindre des résolutions temporelles de 100 ps qui vont au-delà des performances de l’hodoscope à fibres et permettrait de faire de l’Ultra Fast Timing cela constitue le projet ClaRys-UFT.Par ailleurs, la radiothérapie innovante «flash» qui permet de délivrer des faisceaux pendant un temps ultracourt (quelques millièmes de secondes au lieu de plusieurs minutes pour la radiothérapie conventionnelle) requiert un monitorage spécifique de faisceaux en mode pulsé. La rapidité des détecteurs diamants constitue là un atout essentiel pour un tel développement avec une capacité de marquage en temps « début » et « fin » des paquets des trains d’impulsions ainsi que de comptage des particules dans le train à haute intensité faisceau. Cela a conduit au développement du moniteur faisceau diamant DIAMMONI dans le cadre du projet R&T IN2P3 DIAMTECH (collaboration LPSC SUBATECH ARRONAX).
Published: 2020

5. Radio-frequency stress-induced modulation of CdTe/ZnTe quantum dots

Author: Lucien Besombes, Edith Bellet-Amalric, V. Tiwari, M. Arino, T. Crozes, Shinji Kuroda, Hervé Boukari, M. Morita, K. Makita, Nanophysique et Semiconducteurs (NPSC), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Université de Tsukuba = University of Tsukuba, Nanofab (Nanofab), PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Nanophysique et Semiconducteurs (NEEL - NPSC), Nanofabrication (NEEL - Nanofab), and ANR-17-CE24-0024,MechaSpin,Positionnement à l'échelle atomique et contrôle cohérent mécanique du spin d'un atome magnétique(2017)
Subjects: Photoluminescence, Photon, Materials science, Piezoelectric coefficient, FOS: Physical sciences, General Physics and Astronomy, Applied Physics (physics.app-ph), 02 engineering and technology, 01 natural sciences, Condensed Matter::Materials Science, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), 0103 physical sciences, Circular polarization, 010302 applied physics, Condensed Matter - Mesoscale and Nanoscale Physics, business.industry, Acoustic wave, Physics - Applied Physics, 021001 nanoscience & nanotechnology, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, Modulation, Quantum dot, [PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other], Optoelectronics, Radio frequency, 0210 nano-technology, business
Abstract: International audience; We demonstrate radio-frequency tuning of the energy of individual CdTe/ZnTe quantum dots (QDs) by Surface Acoustic Waves (SAWs). Despite the very weak piezoelectric coefficient of ZnTe, SAW in the GHz range can be launched on a ZnTe surface using interdigitated transducers deposited on a c-axis oriented ZnO layer grown on ZnTe containing CdTe QDs. The photoluminescence (PL) of individual QDs is used as a nanometer-scale sensor of the acoustic strain field. The energy of QDs is modulated by SAW in the GHz range and leads to characteristic broadening of time-integrated PL spectra. The dynamic modulation of the QD PL energy can also be detected in the time domain using phase-locked time domain spectroscopy. This technique is in particular used for monitoring complex local acoustic fields resulting from the superposition of two or more SAW pulses in a cavity. Under magnetic field, the dynamic spectral tuning of a single QD by SAW can be used to generate single photons with alternating circular polarization controlled in the GHz range.
Published: 2020
Full Text: View/download PDF

6. Tuning Electroluminescence from a Plasmonic Cavity-Coupled Silicon Light Source

Author: M. den Hertog, James F. Cahoon, Sebastian Glassner, B. Fernandez, Hamid Keshmiri, Alois Lugstein, David Hill, Vienna University of Technology (TU Wien), Vienna Biocenter - VBC [Austria], Technische Hoschschule, University of Applied Sciences [Darmstadt], Department of Chemistry, North Carolina State University, Raleigh, NC 27695, affiliation inconnue, Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and Matériaux, Rayonnements, Structure (MRS)
Subjects: Materials science, Silicon, Band gap, chemistry.chemical_element, Bioengineering, 02 engineering and technology, Integrated circuit, Electroluminescence, 01 natural sciences, 7. Clean energy, law.invention, Footprint (electronics), law, 0103 physical sciences, Hardware_INTEGRATEDCIRCUITS, General Materials Science, Scaling, ComputingMilieux_MISCELLANEOUS, Plasmon, 010302 applied physics, Silicon photonics, Mechanical Engineering, General Chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Engineering physics, chemistry, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], 0210 nano-technology
Abstract: The combination of Moore's law and Dennard's scaling rules have constituted the fundamental guidelines for the silicon-based semiconductor industry for decades. Furthermore, the enormous growth of global data volume has pushed the demand for complex and densely packed devices. In recent years, it has become clear that wired interconnects impose increasingly severe speed and power limitations onto integrated circuits as scaling slows toward a halt. To overcome these limitations, there is a clear need for optical data processing. Despite significant progress in the development of silicon photonics, light sources remain challenging owing to the indirect bandgap of group IV materials. It is therefore highly desirable to develop new concepts for a silicon light source that meets efficiency and footprint requirements similar to their electronic counterparts. Here, we demonstrate an electrically driven and tunable silicon light source by matching the resonant modes of a silver nanocavity with the hot luminescence spectrum of an avalanching p-n junction. The cavity significantly enhances phonon-assisted recombination of hot carriers by tailoring the local density of states at the size-tunable resonance. Such tunable nanoscale emitter may be of great interest for short-reach communications, microdisplays or lab-on-chip applications.
Published: 2018
Full Text: View/download PDF

7. In-situ high resolution TEM observation of Aluminum diffusion in Germanium nanowires: fabricating sub-10 nm Ge quantum dots

Author: Luong, M., Robin, Eric, Pauc, N., Gentile, P., Sistani, M., Lugstein, A., Spies, M., Fernandez, B., Den Hertog, M., Laboratoire d'Etude des Matériaux par Microscopie Avancée (LEMMA ), Modélisation et Exploration des Matériaux (MEM), Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Silicon Nanoelectronics Photonics and Structures (SiNaps), PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Institute of Applied Physics [Vienna] (TU Wien), Technical University of Vienna [Vienna] (TU WIEN), Matériaux, Rayonnements, Structure (MRS), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS), and Nanofab (Nanofab)
Subjects: Germanium, in-situ transmission electron microscopy, aluminum, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], solid state exchanged reaction, rapid thermal annealing
Abstract: International audience; Aluminum-germanium nanowires (NWs) thermal activated solid state reaction is a promising system as very sharp and well defined one dimensional contacts can be created between a metal and a semiconductor, that can become a quantum dot if the size becomes sufficiently small. In the search for high performance devices without variability, it is of high interest to allow deterministic fabrication of nanowire quantum dots, avoiding sample variability and obtaining atomic scale precision on the fabricated dot size. In this paper, we present a reliable fabrication process to produce sub-10 nm Ge quantum dots (QDs), using a combination of ex-situ thermal annealing via rapid thermal annealing (RTA) and in-situ Joule heating technique in a transmission electron microscope (TEM). First we present in-situ direct joule heating experiments showing how the heating electrode could be damaged due to the formation of Al crystals and voids at the vicinity of the metal/NW contact, likely related with electro-migration phenomena. We show that the contact quality can be preserved by including an additional ex-situ RTA step prior to the in-situ heating. The in-situ observations also show in real-time how the exchange reaction initiates simultaneously from several locations underneath the Al contact pad, and the Al crystal grows gradually inside the initial Ge NW with the growth interface along a Ge(111) lattice plane. Once the reaction front moves out from underneath the contact metal, two factors jeopardize an atomically accurate control of the Al/Ge reaction interface. We observed a local acceleration of the reaction interface due to the electron beam irradiation in the transmission electron microscope as well as the appearance of large jumps of the interface in unpassivated Ge wires while a smooth advancement of the reaction interface was observed in wires with an Al2O3 protecting shell on the surface. Carefully controlling all aspects of the exchange reaction, we demonstrate a fabrication process combining ex-situ and in-situ heating techniques to precisely control and produce axial Al/Ge/Al NW heterostructures with an ultra-short Ge segment down to 8 nanometers. Practically, the scaling down of Ge segment length is only limited by the microscope resolution.
Published: 2020
Full Text: View/download PDF

8. Diamond-based detector development for pulsed beam monitoring for medical applications

Author: Gallin-Martel, Marie-Laure, Bes, A., Bosson, G., Bouvier, J., Collot, J., Curtoni, Sébastien, Dauvergne, Denis, Everaere, Pierre, Gallin-Martel, Laurent, Ghimouz, A., Hoareau, Ch, Lacoste, A., Marcatili, Sara, Muraz, J.-F., Rarbi, F., Rossetto, Olivier, Rosuel, Nicolas, Tribouilloy, L., Yamouni, M., Guertin, Arnaud, Haddad, Ferid, Koumeir, Charbel, Poirier, F., Métivier, Vincent, Servagent, Noël, Testa, Etienne, Adam, Jean-François, Létang, Jean Michel, Motte, J.-F., Abbassi, L., Crozes, T., Rayet, Béatrice, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Accélérateur pour la Recherche en Radiochimie et Oncologie [Nantes Atlantique] (GIP ARRONAX), Université de Nantes (UN)-Institut de Cancérologie de l'Ouest [Angers/Nantes] (UNICANCER/ICO), UNICANCER-UNICANCER-Hôpital Guillaume-et-René-Laennec [Saint-Herblain], Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Synchrotron Radiation for Biomedicine = Rayonnement SynchroTROn pour la Recherche BiomédicalE (STROBE), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Grenoble Alpes (UGA), Imagerie Tomographique et Radiothérapie, Centre de Recherche en Acquisition et Traitement de l'Image pour la Santé (CREATIS), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Hospices Civils de Lyon (HCL)-Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Hospices Civils de Lyon (HCL)-Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Nanofabrication (NEEL - Nanofab), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), CERN, Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Université Jean Monnet [Saint-Étienne] (UJM)-Hospices Civils de Lyon (HCL)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Jean Monnet [Saint-Étienne] (UJM)-Hospices Civils de Lyon (HCL)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), and Nanofab (Nanofab)
Subjects: [PHYS.PHYS.PHYS-MED-PH] Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.PHYS.PHYS-MED-PH]Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Abstract: Virtual; International audience; Development of new generations of ion accelerators:•medical applications: hadrontherapy, X-ray or synchrotron radiation therapy and flash therapyvery precise monitoring of the beam with rapid counting in a high lyradiative environment.The intrinsic qualities of diamond:•speed, low leakage current, excellent SNR, resistance to radiationan excellent candidate to meet such monitoring requirements over a wide dynamic range from a fraction of pA (single particle) up to μA.
Published: 2020

9. Correlated and in-situ electrical transmission electron microscopy studies and related membrane-chip fabrication

Author: Zahra Sadre-Momtaz, Eva Monroy, Bruno Fernandez, Martien Den Hertog, Minh Anh Luong, Maria Spies, Thierry Fournier, Jonas Lähnemann, Matériaux, Rayonnements, Structure (MRS), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Laboratoire d'Etude des Matériaux par Microscopie Avancée (LEMMA ), Modélisation et Exploration des Matériaux (MEM), Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Nanofab (Nanofab), Nanophysique et Semiconducteurs (NPSC), ANR ERC, Matériaux, Rayonnements, Structure (NEEL - MRS), and Nanofabrication (NEEL - Nanofab)
Subjects: Fabrication, Materials science, genetic structures, Nanowire, FOS: Physical sciences, Bioengineering, Applied Physics (physics.app-ph), semiconductors, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, chemistry.chemical_compound, in-situ TEM, General Materials Science, Electrical and Electronic Engineering, Condensed Matter - Materials Science, business.industry, Mechanical Engineering, technology, industry, and agriculture, Materials Science (cond-mat.mtrl-sci), Biasing, Physics - Applied Physics, General Chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Characterization (materials science), Semiconductor, nanowires, Silicon nitride, chemistry, Mechanics of Materials, Transmission electron microscopy, correlation, silicon nitride membrane-chip, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], lithography, Optoelectronics, 0210 nano-technology, Joule heating, business
Abstract: Understanding the interplay between the structure, composition and opto-electronic properties of semiconductor nano-objects requires combining transmission electron microscopy (TEM) based techniques with electrical and optical measurements on the very same specimen. Recent developments in TEM technologies allow not only the identification and in-situ electrical characterization of a particular object, but also the direct visualization of its modification in-situ by techniques such as Joule heating. Over the past years, we have carried out a number of studies in these fields that are reviewed in this contribution. In particular, we discuss here i) correlated studies where the same unique object is characterized electro-optically and by TEM, ii) in-situ Joule heating studies where a solid-state metal-semiconductor reaction is monitored in the TEM, and iii) in-situ biasing studies to better understand the electrical properties of contacted single nanowires. In addition, we provide detailed fabrication steps for the silicon nitride membranes crucial to these correlated and in-situ measurements., Comment: This is an author-created, un-copyedited version of a topical review published in Nanotechnology. IOP Publishing Ltd. is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-6528/ab99f0
Published: 2020
Full Text: View/download PDF

10. In-situ high resolution Transmission Electron Microscopy observation of Aluminum diffusion in Germanium nanowires: fabricating sub-10 nm Ge quantum dots

Author: Luong, M., Robin, Eric, Pauc, N., Gentile, P., Sistani, M., Lugstein, A., Spies, M., Fernandez, B., Den Hertog, M., Laboratoire d'Etude des Matériaux par Microscopie Avancée (LEMMA ), Modélisation et Exploration des Matériaux (MEM), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Silicon Nanoelectronics Photonics and Structures (SiNaps), PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), Institute of Applied Physics [Vienna] (TU Wien), Vienna University of Technology (TU Wien), Matériaux, Rayonnements, Structure (MRS), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Nanofab (Nanofab), Technical University of Vienna [Vienna] (TU WIEN), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Germanium, in-situ transmission electron microscopy, aluminum, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], solid state exchanged reaction, rapid thermal annealing
Abstract: International audience; Aluminum-germanium nanowires (NWs) thermal activated solid state reaction is a promising system as very sharp and well defined one dimensional contacts can be created between a metal and a semiconductor, that can become a quantum dot if the size becomes sufficiently small. In the search for high performance devices without variability, it is of high interest to allow deterministic fabrication of nanowire quantum dots, avoiding sample variability and obtaining atomic scale precision on the fabricated dot size. In this paper, we present a reliable fabrication process to produce sub-10 nm Ge quantum dots (QDs), using a combination of ex-situ thermal annealing via rapid thermal annealing (RTA) and in-situ Joule heating technique in a transmission electron microscope (TEM). First we present in-situ direct joule heating experiments showing how the heating electrode could be damaged due to the formation of Al crystals and voids at the vicinity of the metal/NW contact, likely related with electro-migration phenomena. We show that the contact quality can be preserved by including an additional ex-situ RTA step prior to the in-situ heating. The in-situ observations also show in real-time how the exchange reaction initiates simultaneously from several locations underneath the Al contact pad, and the Al crystal grows gradually inside the initial Ge NW with the growth interface along a Ge(111) lattice plane. Once the reaction front moves out from underneath the contact metal, two factors jeopardize an atomically accurate control of the Al/Ge reaction interface. We observed a local acceleration of the reaction interface due to the electron beam irradiation in the transmission electron microscope as well as the appearance of large jumps of the interface in unpassivated Ge wires while a smooth advancement of the reaction interface was observed in wires with an Al2O3 protecting shell on the surface. Carefully controlling all aspects of the exchange reaction, we demonstrate a fabrication process combining ex-situ and in-situ heating techniques to precisely control and produce axial Al/Ge/Al NW heterostructures with an ultra-short Ge segment down to 8 nanometers. Practically, the scaling down of Ge segment length is only limited by the microscope resolution.
Published: 2020
Full Text: View/download PDF

11. Microscale crystalline rare-earth doped resonators for strain-coupled optomechanics

Author: Bess Fang, Philippe Goldner, Nicolas Galland, S. Seidelin, Nemenja Lučić, S. Zhang, J. F. Motte, Alban Ferrier, Yann Le Coq, Jérôme Debray, Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nano-Optique et Forces (NOF ), Laboratoire national de métrologie et d'essais - Systèmes de Référence Temps-Espace (LNE - SYRTE), Systèmes de Référence Temps Espace (SYRTE), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Cristaux Massifs (CrisMass), Université Paris sciences et lettres (PSL), Sorbonne Université (SU), Institut Universitaire de France (IUF), and Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.)
Subjects: Mechanical Resonators, Cantilever, Materials science, FOS: Physical sciences, Applied Physics (physics.app-ph), 01 natural sciences, 7. Clean energy, Crystal, Resonator, [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph], Etching (microfabrication), Strain- coupling, Condensed Matter::Superconductivity, 0502 economics and business, 0103 physical sciences, Microscale chemistry, Optomechanics, Quantum Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Dopant, 010308 nuclear & particles physics, business.industry, 05 social sciences, Rare-earth Doped Crystals, Focused-Ion-Beam Etching Techniques, Spectral Hole Burning, Physics - Applied Physics, Quantum technology, Optoelectronics, business, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], 050203 business & management, Physics - Optics, Optics (physics.optics)
Abstract: Rare-earth ion doped crystals for hybrid quantum technologies are an area of growing interest in the solid-state physics community. We have earlier theoretically proposed a hybrid scheme of a mechanical resonator which is fabricated out of a rare-earth doped mono-crystalline structure. The rare-earth ion dopants have absorption energies which are sensitive to crystal strain, and it is thus possible to couple the ions to the bending motion of the crystal cantilever. This type of resonator can be useful for either investigating the laws of quantum physics with material objects or for applications such as sensitive force-sensors. Here, we present the design and fabrication method based on focused-ion-beam etching techniques which we have successfully employed in order to create such microscale resonators, as well as the design of the environment which will allow studying the quantum behavior of the resonators.
Published: 2020
Full Text: View/download PDF

12. Conception d'un moniteur faisceau basé sur l'utilisation de détecteurs diamants pour le contrôle en ligne de faisceaux pulsés

Author: Gallin-Martel, Marie-Laure, Bes, A., Bosson, G., Collot, J., Dauvergne, D, Curtoni, S., Gallin-Martel, L, Ghimouz, A, Hoareau, Ch, Lacoste, A, Marcatili, S, Muraz, J, Rarbi, F, Rossetto, O, Rosuel, N, Tribouilloy, L, Yamouni, M, Guertin, Arnaud, Haddad, Ferid, Koumeir, Charbel, Poirier, F, Métivier, Vincent, Servagent, Noël, Motte, J.-F., Abbassi, L., Adam, Jean-François, Rayet, Béatrice, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Accélérateur pour la Recherche en Radiochimie et Oncologie [Nantes Atlantique] (GIP ARRONAX), Université de Nantes (UN)-Institut de Cancérologie de l'Ouest [Angers/Nantes] (UNICANCER/ICO), UNICANCER-UNICANCER-Hôpital Guillaume-et-René-Laennec [Saint-Herblain], Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Nanofabrication (NEEL - Nanofab), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Synchrotron Radiation for Biomedicine = Rayonnement SynchroTROn pour la Recherche BiomédicalE (STROBE), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Grenoble Alpes (UGA), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Nanofab (Nanofab), and Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])
Subjects: [PHYS.PHYS.PHYS-MED-PH] Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.PHYS.PHYS-MED-PH]Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], ComputingMilieux_MISCELLANEOUS
Abstract: National audience
Published: 2020

13. Medical applications of diamond detectors: online control of Hadrontherapy with fast timing and Microbeam Radiation Therapy monitoring

Author: Denis Dauvergne, Abbassi, L., Jean-François Adam, Bes, A., Bosson, G., Collot, J., Crozes, T., Curtoni, S., Gallin-Martel, L., L Gallin-Martel, M., Ghimouz, A., Ferid Haddad, Charbel Koumeir, Lacoste, A., Jean Michel Létang, Jayde Livingstone, Marcatili, S., Vincent Métivier, F Motte, J., F Muraz, J., Rarbi, F. E., Rossetto, O., Rosuel, N., Noël Servagent, É, Testa, Tribouilloy, L., Yamouni, M., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Synchrotron Radiation for Biomedicine Laboratory (STROBE), ARRONAX - (GIP) Groupement d'Intérêt Public [Saint-Herblain] (Institut de Recherche Public), Imagerie Tomographique et Radiothérapie, Centre de Recherche en Acquisition et Traitement de l'Image pour la Santé (CREATIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Hospices Civils de Lyon (HCL)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Hospices Civils de Lyon (HCL)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics::Instrumentation and Detectors, [PHYS.PHYS.PHYS-MED-PH]Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Abstract: International audience; This presentation will focus on two applications of diamond detectors in the field of innovative radiotherapies.The first one consists of a beam hodoscope for hadrontherapy (proton or carbon ion beams). This detector will be used for position and time stamp of the incident particle beam, in order to detect secondary particles (mainly prompt-gammas). Time of Flight is used to reduce background from massive particles, and select photons issued from the patient only. This detector will be made of a mosaic assembly of several diamond plates with double-side strip metallization. The electronic readout design will enable high count rate and high time resolution of the detector.Preliminary measurements were performed at ARRONAX with 68 MeV protons. Detection efficiency was measured with mono- and polycrystalline diamond detectors. For the latter, up to 95% efficiency (corrected from noise triggering) was obtained for single-proton detection. The time resolution was close to 100ps rms for prompt gamma detection using diamond and fast scintillators for incoming particles and secondary photon detection, respectively. The potential for ultra-fast timing in prompt gamma imaging leads to spatial discrimination and real time reconstruction capabilities for range verification during treatment.The second application consists in the in vivo monitoring of Microbeam Radiation Therapy. The beam is spatially fractionated with local doses above 1000 Gy/s delivered in narrow peaks of a few tens of μm, separated by 300-500μm. A large area diamond detector with 1D position readout by fast- and high-dynamics charge integration will be used to monitor the transmitted photon beam, and thus evaluate the energy deposited in the patient.
Published: 2019

14. On-chip Thermometry for Microwave Optomechanics Implemented in a Nuclear Demagnetization Cryostat

Author: R. R. Gazizulin, Olivier Maillet, Thierry Crozes, Eddy Collin, A. Luck, Andrew Fefferman, Olivier Bourgeois, J.-F. Motte, D. Cattiaux, Xin Zhou, Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Nano and Microsystems - IEMN (NAM6 - IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Ultra-basses températures (UBT), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofab (Nanofab ), Thermodynamique et biophysique des petits systèmes (TPS), Ultra-basses températures (NEEL - UBT), Nanofabrication (NEEL - Nanofab), Thermodynamique et biophysique des petits systèmes (NEEL - TPS), A C K N O W L E D G M E N T S :We acknowledge the use of the Néel facility Nanofab for the device fabrication, and the Néel Cryogenics facility with especially Anne Gerardin for realization of mechanical elements of the demagnetization cryostat. X.Z. and E.C. thank Olivier Arcizet and Benjamin Pigeau for help in room-temperature characterization of the NEMS devices using optics, E.C. also thanks O. Arcizet, M. Sillanpää,K. Lehnert, J. Teufel, S. Barzanjeh, K. Schwab, J. Parpia, and M. Dykman for very useful discussions. We acknowledge support from the ERC CoG Grant ULT-NEMS No. 647917, StG Grant UNIGLASS No. 714692, and theSTaRS-MOC project from Région Hauts-de-France. The research leading to these results has received funding fromthe European Union’s Horizon 2020 Research and Innovation Programme, under Grant Agreement No. 824109, theEuropean Microkelvin Platform (EMP). Note added.—Recently, a collaboration between Aalto University and Institut Néel has started with the aim of cooling down a drumhead Al device as low as possible on our adiabatic nuclear demagnetization platform. We have evidence that the same features as for beams are present, at a different level of expression. This shall be publishedelsewhere., European Project: 647917,H2020,ERC-2014-CoG,ULT-NEMS(2015), European Project: 714692,H2020,ERC-2016-STG,UNIGLASS(2017), and European Project: 824109,H2020,H2020-INFRAIA-2018-1,EMP(2019)
Subjects: Cryostat, Quantum decoherence, Materials science, Nuclear engineering, FOS: Physical sciences, General Physics and Astronomy, 02 engineering and technology, Mechanics, 7. Clean energy, 01 natural sciences, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), 0103 physical sciences, Thermal, 010306 general physics, Adiabatic process, Optomechanics, [PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall], Quantum Physics, Condensed Matter - Mesoscale and Nanoscale Physics, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 3. Good health, Active cooling, 0210 nano-technology, Ground state, Microwave
Abstract: We report on microwave optomechanics measurements performed on a nuclear adiabatic demagnetization cryostat, whose temperature is determined by accurate thermometry from below 500$~\mu$K to about 1$~$Kelvin. We describe a method for accessing the on-chip temperature, building on the blue-detuned parametric instability and a standard microwave setup. The capabilities and sensitivity of both the experimental arrangement and the developed technique are demonstrated with a very weakly coupled silicon-nitride doubly-clamped beam mode of about 4$~$MHz and a niobium on-chip cavity resonating around 6$~$GHz. We report on an unstable intrinsic driving force in the coupled microwave-mechanical system acting on the mechanics that appears below typically 100$~$mK. The origin of this phenomenon remains unknown, and deserves theoretical input. It prevents us from performing reliable experiments below typically 10-30$~$mK; however no evidence of thermal decoupling is observed, and we propose that the same features should be present in all devices sharing the microwave technology, at different levels of strengths. We further demonstrate empirically how most of the unstable feature can be annihilated, and speculate how the mechanism could be linked to atomic-scale two level systems. The described microwave/microkelvin facility is part of the EMP platform, and shall be used for further experiments within and below the millikelvin range., Comment: 14 pages with appendix; plus Erratum 17, 049901 (2022)
Published: 2019
Full Text: View/download PDF

15. Development of Highly Sensitive Niobium Nitride Resistive Thermal Probes for Nanoscale Thermal Microscopy

Author: Swami, R., Paterson, J., Singhal, D., Julié, G., Le Denmat, S., Motte, J.-F., Alkurdi, A., Yin, J., Robillard, J.F., Chapuis, P.-O., Gomes, S., Bourgeois, Olivier, Thermodynamique et biophysique des petits systèmes (TPS), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofab (Nanofab ), Optique et microscopies (POM), Centre d'Energétique et de Thermique de Lyon (CETHIL), Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon, Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Microélectronique Silicium - IEMN (MICROE SI - IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Thermodynamique et biophysique des petits systèmes (NEEL - TPS), Nanofabrication (NEEL - Nanofab), Optique & Microscopies (NEEL - POM), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), and Microélectronique Silicium - IEMN (MICROELEC SI - IEMN)
Subjects: [SPI.MECA.THER]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Thermics [physics.class-ph], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2019

16. Unidirectional light transmiission by two-layer nanostructures interacting via optical near-fields

Author: Satoshi Ishii, Aurélien Drezet, Serge Huant, J. F. Motte, Hirokazu Hori, Makoto Naruse, National Institute of Information and Communications Technology [Tokyo, Japan] (NICT), Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nano-Optique et Forces (NOF ), and Yamanashi University
Subjects: Light transmission, Nanostructure, Materials science, Two layer, FOS: Physical sciences, Physics::Optics, General Physics and Astronomy, 02 engineering and technology, 01 natural sciences, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), 0103 physical sciences, ComputingMilieux_MISCELLANEOUS, 010302 applied physics, Condensed Matter - Mesoscale and Nanoscale Physics, business.industry, Nanostructured materials, Energy conversion efficiency, General Engineering, 021001 nanoscience & nanotechnology, Reciprocity (electromagnetism), [PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other], Optoelectronics, Metal nanostructures, 0210 nano-technology, business, Optics (physics.optics), Physics - Optics
Abstract: We experimentally demonstrate unidirectional light transmission through two-layer nanostructured materials considering that the horizontal-to-vertical-polarization conversion efficiency in the forward direction and the vertical-to-horizontal efficiency in the backward direction, which are usually equivalent due to optical reciprocity, are different. The different ways of transferring light momentum in the forward and backward directions via optical near-fields between the layers are responsible for the unidirectionality of light, which was theoretically investigated in our recent work Naruse et al. [J. Opt. Soc. Am. B 31, 2404 (2014)]. With two-layer metal nanostructures experimentally fabricated via a repeated lift-off technique, consistent optical characteristics are observed, verifying the utilization of the large momentum of optical near-fields.
Published: 2019
Full Text: View/download PDF

17. Network of thermoelectric nanogenerators for low power energy harvesting

Author: Sébastien Dufresnes, Anaïs Proudhom, Olivier Bourgeois, Sylvain Dumont, Céline Tur, Daniel Bourgault, Thierry Crozes, Dimitri Tainoff, Thermodynamique et biophysique des petits systèmes (TPS), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofab (Nanofab ), and Electronique (ElecLab)
Subjects: Materials science, Airflow, FOS: Physical sciences, 02 engineering and technology, Applied Physics (physics.app-ph), 010402 general chemistry, 01 natural sciences, 7. Clean energy, Temperature measurement, Planar, Thermal insulation, Thermoelectric effect, General Materials Science, Electrical and Electronic Engineering, [PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall], Renewable Energy, Sustainability and the Environment, business.industry, Physics - Applied Physics, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Temperature gradient, Optoelectronics, 0210 nano-technology, business, Energy harvesting, Voltage
Abstract: International audience; We report the design, elaboration and measurements of an innovative planar thermoelectric (TE) devices made of a large array of small mechanically suspended nanogenerators (nanoTEG). The miniaturized TE generators based on SiN membranes are arranged in series and/or in parallel depending on the expected final resistance adapted to the one of the load. The microstructuration allows, at the same time, a high thermal insulation of the membrane from the silicon frame and high thermal coupling to its environment (surrounding air, radiations). We show a ratio of 60% between the measured effective temperature of the membrane, (and hence of the TE junctions), and the available temperature of the heat source (air). The thermal gradient generated across the TE junction reaches a value as high as 60 kelvin per mm. Energy harvesting with this planar TE module is demonstrated through the collected voltage on the TE junctions when a temperature gradient is applied, showing a harvested power on the order of 0.3 µWatt for a 1 cm 2 chip for an effective temperature gradient of 10 K. The optimization of nanoTEGs performances will increase the power harvested significantly and permit to send a signal by a regular communication protocol and feed basic functions like temperature measurement or airflow sensing.
Published: 2019
Full Text: View/download PDF

18. Diamond-based detector development for beam monitoring

Author: Gallin-Martel, M.L., Abbassi, L., Adam, J.F., Bes, A., Bosson, G., Collot, J., Crozes, T., Curtoni, S., Dauvergne, D., de Nolf, W., Fontana, M., Gallin-Martel, L., Ghimouz, A., Hostachy, J.-Y., Lacoste, A., Marcatili, S., Morse, J., Motte, J.-F., Muraz, J.-F., Rarbi, F., Rossetto, O., Rosuel, N., Salomé, M., Testa, E., Tribouilloy, L., Yamouni, M., Rayet, Béatrice, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Rayonnement Synchrotron et Recherche Medicale (RSRM), Université Joseph Fourier - Grenoble 1 (UJF)-European Synchrotron Radiation Facility (ESRF)-Institut National de la Santé et de la Recherche Médicale (INSERM), European Synchrotron Radiation Facility (ESRF), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
Subjects: [PHYS.PHYS.PHYS-MED-PH] Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.PHYS.PHYS-MED-PH]Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2019

19. Nanofab technological platform and realization of sensors on diamond substrate

Author: Abbassi, L., Motte, J.-F., Gallin-Martel, M.L., Dauvergne, D., Rayet, Béatrice, Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Centre National de la Recherche Scientifique (CNRS)
Subjects: [PHYS.PHYS.PHYS-MED-PH] Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.PHYS.PHYS-MED-PH]Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Abstract: International audience; In this presentation, we will describe the technological platform NanoFab of the Néel Institute. Then we will see Polycrystalline Diamond Detectors for Online Hadron Therapy Beam Tagging ApplicationsThe NanoFab platform is a local technology centred dedicated to produce objects for fundamental research.The installations allow realization micro and nanoscale objects, often one use of a small number of technological steps and mainly by lithography techniques. Users are trained to carry out the manufacturing steps themselves with technical team supports.The equipment is suitable for silicon substrates, but also a large number of exotic substrates are used. Whether by small size or very diverse natures (glass, diamonds, sapphire, membranes, etc.), reflecting the necessary flexibility of NanoFab.In the second part, we will present the realization of thin layer of aluminium on diamond substrate. We will see the difficulties encountered in carrying out manufacturing steps and handling of transparent and small object such as 3x3mm or 10x10mm diamond substrates. We will then see the difficulty of cleaning the surface and the traps encountered. The challenge of making a resist on both sides of the sample and making an optical lithography with alignment and finally finishing with metallization.
Published: 2019

20. Diamond-based detector development for medical and nuclear applications

Author: Gallin-Martel, M.L., Abbassi, L., Adam, J.-F., Brambilla, S., Bes, A., Bosson, G., Collot, J., Crozes, T., Curtoni, S., Dauvergne, D., de Nolf, W., Fontana, M., Gallin-Martel, L., Ghimouz, A., Hostachy, J.Y., Iskra, L., Jastrzab, M., Kessedjian, G., Kim, Y.H., Köester, U., Lacoste, A., Marcatili, S., Morse, J., Motte, J.-F., Muraz, J.F., Ramdhane, M., Rarbi, F., Rossetto, O., Rosuel, N., Sage, C., Salomé, M., Testa, E., Tribouilloy, L., Yamouni, M., Rayet, Béatrice, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), ID17 - Bio-medical Beamline, European Synchrotron Radiation Facility (ESRF), Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), Istituto Nazionale di Fisica Nucleare (INFN), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Institut Laue-Langevin (ILL), and ILL
Subjects: [PHYS.PHYS.PHYS-MED-PH] Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.PHYS.PHYS-MED-PH]Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2019

21. Probing the light hole / heavy hole switching with correlated magneto-optical spectroscopy and chemical analysis on a single quantum dot

Author: K. Moratis, M. Den Hertog, Eric Robin, Fabrice Donatini, Edith Bellet-Amalric, J. F. Motte, Joel Cibert, David Ferrand, Pamela Rueda-Fonseca, Régis André, Yann-Michel Niquet, Alberto Artioli, Nanophysique et Semiconducteurs (NEEL - NPSC), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanophysique et Semiconducteurs (NPSC), PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Nanofabrication (NEEL - Nanofab), Optique & Microscopies (NEEL - POM), Matériaux, Rayonnements, Structure (NEEL - MRS), Laboratoire d'Etude des Matériaux par Microscopie Avancée (LEMMA ), Modélisation et Exploration des Matériaux (MEM), Laboratory of Atomistic Simulation (LSIM ), Nanofab (Nanofab ), Optique et microscopies (POM), Matériaux, Rayonnements, Structure (MRS), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])
Subjects: Materials science, Nanowire, Bioengineering, Cathodoluminescence, 02 engineering and technology, semiconductors, 010402 general chemistry, 01 natural sciences, Molecular physics, Condensed Matter::Materials Science, molecular beam epitaxy, General Materials Science, Electrical and Electronic Engineering, Spectroscopy, optical spectroscopy, business.industry, Mechanical Engineering, quantum dot, cathodoluminescence, General Chemistry, 021001 nanoscience & nanotechnology, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, 0104 chemical sciences, Magnetic field, Semiconductor, nanowires, Mechanics of Materials, Quantum dot, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], 0210 nano-technology, Ground state, business, Molecular beam epitaxy
Abstract: International audience; A whole series of complementary studies have been performed on the same, single nanowire containing a quantum dot: cathodoluminescence spectroscopy and imaging, micro-photoluminescence spectroscopy under magnetic field and as a function of temperature, and energy-dispersive X-ray spectrometry and imaging. The ZnTe nanowire was deposited on a Si 3 N 4 membrane with Ti/Al patterns. The complete set of data shows that the CdTe quantum dot features the heavy-hole state as a ground state, although the compressive mismatch strain promotes a light-hole ground state as soon as the aspect ratio is larger than unity (elongated dot). A numerical calculation of the whole structure shows that the transition from the heavy-hole to the light-hole configuration is pushed toward values of the aspect ratio much larger than unity by the presence of a (Zn,Mg)Te shell, and that the effect is further enhanced by a small valence band offset between the semiconductors in the dot and around it.
Published: 2019
Full Text: View/download PDF

22. Optical trapping and orientation-resolved spectroscopy of europium-doped nanorods

Author: Jochen Fick, Khalid Lahlil, Gwénaëlle Julie, Síle Nic Chormaic, Aashutosh Kumar, Jeongmo Kim, Jongwook Kim, Thierry Gacoin, Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire de Physique de la Matière Condensée (LPMC), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique de la matière condensée (LPMC), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Nanofab (Nanofab), Quantum Optics Group, and University College Cork (UCC)-Science Foundation Ireland-Tyndall National Institute
Subjects: Microscope, Materials science, Optical fiber, Photoluminescence, Physics::Optics, chemistry.chemical_element, 02 engineering and technology, Trapping, 01 natural sciences, law.invention, 010309 optics, Condensed Matter::Materials Science, law, 0103 physical sciences, Electrical and Electronic Engineering, Spectroscopy, europium, Physics::Biological Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], optical tweezers, business.industry, 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, chemistry, Optical tweezers, Optoelectronics, photoluminescence, Nanorod, optical fibre, nanorods, 0210 nano-technology, business, Europium
Abstract: Europium-doped NaYF4 nanorods with a high aspect ratio are optically trapped using a single fibre tip optical tweezers. Three distinct trapping positions of the nanorods are observed: in contact with the fibre tip, close to the tip and 5 µm from the tip end. The direction and polarisation-dependent Eu3 + photoluminescence is investigated by recording the emission parallel and perpendicular to the nanorod long axis through the trapping fibre and the microscope objective, respectively. These spectroscopic measurements permit an unambiguous determination of the nanorod orientation.
Published: 2020
Full Text: View/download PDF

23. Development of Niobium Nitride based Highly Sensitive Resistive Probes for Nanoscale Scanning Thermal Microscopy

Author: Swami, Rahul, Julié, Gwénäelle, Ledenmat, Simon, Motte, Jean-François, Alkurdi, Ali, Chapuis, Pierre-Olivier, Gomès, Séverine, Bourgeois, Olivier, Thermodynamique et biophysique des petits systèmes (TPS), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofab (Nanofab ), IME Nanotech, Université Joseph Fourier - Grenoble 1 (UJF)-Institut National Polytechnique de Grenoble (INPG), Centre d'Energétique et de Thermique de Lyon (CETHIL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), and Chapuis, Pierre-Olivier
Subjects: [SPI.MECA.THER]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Thermics [physics.class-ph], ComputingMilieux_MISCELLANEOUS, [SPI.MECA.THER] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Thermics [physics.class-ph]
Abstract: International audience
Published: 2018

24. Monolithic Axial and Radial Metal–Semiconductor Nanowire Heterostructures

Author: Bruno Fernandez, Masiar Sistani, Jun Yao, M. Den Hertog, Minh Anh Luong, Eric Robin, Alois Lugstein, Maria Spies, Emmerich Bertagnolli, Institute of Applied Physics [Vienna] (TU Wien), Vienna University of Technology (TU Wien), Laboratoire d'Etude des Matériaux par Microscopie Avancée (LEMMA ), Modélisation et Exploration des Matériaux (MEM), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Matériaux, Rayonnements, Structure (MRS), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofab (Nanofab ), Department of Electrical and Computer Engineering - University of Massachusetts (ECE), University of Massachusetts [Amherst] (UMass Amherst), University of Massachusetts System (UMASS)-University of Massachusetts System (UMASS), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Matériaux, Rayonnements, Structure (NEEL - MRS), and Nanofabrication (NEEL - Nanofab)
Subjects: Materials science, Fabrication, Nanostructure, Nanowire, Physics::Optics, chemistry.chemical_element, Bioengineering, Germanium, 02 engineering and technology, 01 natural sciences, Monocrystalline silicon, Condensed Matter::Materials Science, 0103 physical sciences, General Materials Science, 010306 general physics, Lithography, Plasmon, ComputingMilieux_MISCELLANEOUS, business.industry, Mechanical Engineering, Heterojunction, General Chemistry, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, 021001 nanoscience & nanotechnology, Condensed Matter Physics, chemistry, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Optoelectronics, 0210 nano-technology, business
Abstract: The electrical and optical properties of low-dimensional nanostructures depend critically on size and geometry and may differ distinctly from those of their bulk counterparts. In particular, ultrathin semiconducting layers as well as nanowires have already proven the feasibility to realize and study quantum size effects enabling novel ultrascaled devices. Further, plasmonic metal nanostructures attracted recently a lot of attention because of appealing near-field-mediated enhancement effects. Thus, combining metal and semiconducting constituents in quasi one-dimensional heterostructures will pave the way for ultrascaled systems and high-performance devices with exceptional electrical, optical, and plasmonic functionality. This Letter reports on the sophisticated fabrication and structural properties of axial and radial Al-Ge and Al-Si nanowire heterostructures, synthesized by a thermally induced exchange reaction of single-crystalline Ge-Si core-shell nanowires and Al pads. This enables a self-aligned metallic contact formation to Ge segments beyond lithographic limitations as well as ultrathin semiconducting layers wrapped around monocrystalline Al core nanowires. High-resolution transmission electron microscopy, energy dispersive X-ray spectroscopy, and μ-Raman measurements proved the composition and perfect crystallinity of these metal-semiconductor nanowire heterostructures. This exemplary selective replacement of Ge by Al represents a general approach for the elaboration of radial and axial metal-semiconductor heterostructures in various Ge-semiconductor heterostructures.
Published: 2018
Full Text: View/download PDF

25. A sensor to measure flow rate in individual nanopore

Author: Sharma, Preeti, Motte, Jean-François, Fournel, Frank, Cross, Benjamin, Charlaix, Élisabeth, Picard, Cyril, Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères] (LIPhy), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofabrication (NEEL - Nanofab), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Nanofab (Nanofab ), and Picard, Cyril
Subjects: [SPI.NANO] Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2018

26. A Direct Sensor to Measure Minute Liquid Flow Rates

Author: Benjamin Cross, Preeti Sharma, Cyril Picard, Elisabeth Charlaix, J. F. Motte, Frank Fournel, Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères] (LIPhy), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofabrication (NEEL - Nanofab), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), and Nanofab (Nanofab )
Subjects: Materials science, Mechanical Engineering, Bioengineering, Nanofluidics, 02 engineering and technology, General Chemistry, Radius, Mechanics, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Tracking (particle physics), 01 natural sciences, Volumetric flow rate, Nanopore, Flow (mathematics), 0103 physical sciences, Particle, General Materials Science, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, 010306 general physics, 0210 nano-technology, [PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft], ComputingMilieux_MISCELLANEOUS, Voltage
Abstract: Nanofluidics finds its root in the study of fluids and flows at the nanoscale. Flow rate is a quantity that is both central when dealing with flows and notoriously difficult to measure experimentally at the scale of an individual nanopore or nanochannel. We show in this letter that minute flow rate can be directly measured accumulating liquid over time within the compliant membrane of a commercial piezoresistive pressure sensor. Our flow rate sensor is versatile and can be operated independently of the nature of the liquid, flow profile, and type of nanochannel. We demonstrate this method by measuring the pressure-driven flow of silicon oil in a single nanochannel of average radius 200 nm. This approach gives reliable measurement of the flow rate up to 1 pL/min. Unlike other nanoscale flow measurements methods based, for instance, on particle tracking, our sensor delivers a direct voltage output suitable for nanoflow control applications.
Published: 2018
Full Text: View/download PDF

27. Thermoelectric nanogenerator networks: a viable source of power for autonomous wireless sensors

Author: Daniel Bourgault, Olivier Bourgeois, Céline Tur, Anaïs Proudhom, Sylvain Dumont, Sébastien Dufresnes, Dimitri Tainoff, Thierry Crozes, Thermodynamique et biophysique des petits systèmes (TPS), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and Nanofab (Nanofab )
Subjects: Microelectromechanical systems, [PHYS]Physics [physics], History, Computer science, business.industry, 020209 energy, Electrical engineering, Nanogenerator, 02 engineering and technology, 021001 nanoscience & nanotechnology, 7. Clean energy, Temperature measurement, Signal, Computer Science Applications, Education, Power (physics), Planar, Thermoelectric effect, 0202 electrical engineering, electronic engineering, information engineering, Wireless, 0210 nano-technology, business, ComputingMilieux_MISCELLANEOUS
Abstract: Here we report the design, the elaboration and the measurement of an innovative planar thermoelectric (TE) devices made of large array of suspended nanogenerators [1]. The miniaturized TE generators are arranged in serial and/or in parallel depending on the expected final resistance adapted to the charge. Devices are elaborated using MEMS clean room processes. They can produce enough power (below 100 ¼Watt) to send a signal with common communication protocol and feed basic functions, for example a temperature measurement.
Published: 2018
Full Text: View/download PDF

28. Heat conduction measurements in ballistic 1D phonon waveguides indicate breakdown of the thermal conductance quantization

Author: Adib Tavakoli, Kunal Lulla, Thierry Crozes, Natalio Mingo, Eddy Collin, Olivier Bourgeois, Thermodynamique et biophysique des petits systèmes (NEEL - TPS), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Ultra-basses températures (NEEL - UBT), Nanofabrication (NEEL - Nanofab), Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux (LITEN), Institut National de L'Energie Solaire (INES), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Thermodynamique et biophysique des petits systèmes (TPS), Ultra-basses températures (UBT), Nanofab (Nanofab ), and Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
Subjects: Science, lcsh:Q, lcsh:Science, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, Article, [PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall]
Abstract: Emerging quantum technologies require mastering thermal management, especially at the nanoscale. It is now accepted that thermal metamaterial-based phonon manipulation is possible, especially at sub-kelvin temperatures. In these extreme limits of low temperatures and dimensions, heat conduction enters a quantum regime where phonon exchange obeys the Landauer formalism. Phonon transport is then governed by the transmission coefficients between the ballistic conductor and the thermal reservoirs. Here we report on ultra-sensitive thermal experiments made on ballistic 1D phonon conductors using a micro-platform suspended sensor. Our thermal conductance measurements attain a power sensitivity of 15 attoWatts \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\sqrt {{\mathrm{Hz}}} \,^{ - 1}$$\end{document}Hz-1 around 100 mK. Ballistic thermal transport is dominated by non-ideal transmission coefficients and not by the quantized thermal conductance of the nanowire itself. This limitation of heat transport in the quantum regime may have a significant impact on modern thermal management and thermal circuit design., At low temperatures and dimensionality it has become possible to probe the quantum limits of heat transport. Tavakoli et al. show that heat transport through a one-dimensional device can be dominated by non-ideal transmission instead of reaching the regime of thermal conductance quantization.
Published: 2018
Full Text: View/download PDF

29. Development of a Beam Tagging Diamond Hodoscope for Online Ion Range Verification in Hadrontherapy

Author: Curtoni, S., Abbassi, L., Bès, A., Bosson, G., Collot, J., Crozes, T., Dauvergne, D., de Nolf, W., Fontana, M., Gallin-Martel, L., Gallin-Martel, M.-L., Ghimouz, A., Hostachy, Jean-Yves, Lacoste, A., Marcatili, S., Morse, J, Motte, J.-F., Muraz, J.F., Rarbi, F., Salomé, M., Testa, E., Yamouni, M., Rayet, Béatrice, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), European Synchrotron Radiation Facility (ESRF), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Diamond detector, beam tagging, prompt-gamma imaging, [PHYS.PHYS.PHYS-MED-PH] Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], hadrontherapy, hodoscope, [PHYS.PHYS.PHYS-MED-PH]Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], online ion range verification, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Time-Of-Flight
Abstract: International audience; Hadrontherapy enables a highly localized dose deposition and better organ-at-risk protection, compared to conventional photon radiotherapy. Therefore, the treatment quality strongly relies on the control of the effective ion range in vivo. However, the ballistics makes this technique sensitive to various ion range uncertainties induced by the dose calculation, patient set-up and morphological changes between sessions. In this context, the French CLaRyS collaboration aims to develop various online ion range verification techniques by detecting secondary particles emitted by the patient following nuclear interactions along the ion path. Among them, Prompt-Gamma Imaging consists in the detection of gamma rays by either a collimated- or a Compton-camera. Indeed, the emission profile of prompt-gamma photons is spatially correlated to the ion range. The performances of such detection systems can be improved by Time-of-Flight discrimination. A high-count-rate beam hodoscope may be necessary to measure the arrival time of ions on the patient. The MoniDiam project at LPSC is developing an ultra-fast beam tagging hodoscope, based on large area diamond sensors. Diamonds exhibit a fast time response, high resistivity and radiation hardness that make them good candidates for such a detector concept. Polycristalline, single crystal and heteroepitaxially grown on Iridium diamond samples with full planar metallization have been characterized, under different irradiation conditions (α and β particles, 95 MeV/u 12C ions at GANIL, 8.5 keV photons at ESRF and 68 MeV protons at ARRONAX). Characterization results demonstrating time resolution below 100 ps, energy resolution between 7% and 10% and a good charge collection efficiency will be presented. In order to build a 2D position tagging hodoscope, we are also developing double-side stripped diamond sensors. We will present current mapping and time resolution recently obtained with first samples at ESRF (ID21).
Published: 2018

30. Large area diamond detectors for fast beam tagging applications in particle therapy Motivation (1/5) Need for in vivo ballistic control in particle therapy

Author: Dauvergne, D., Bès, A., Bosson, G., Collot, J., Curtoni, S., Gallin-Martel, L., Gallin-Martel, M.L., Ghimouz, A., Hostachy, J.-Y., Lacoste, A., Marcatili, S., Muraz, J.-F., Rarbi, F., Rossetto, O., Yamouni, M., Fontana, M., Krimmer, J., Testa, E., Salomé, M., Morse, J., de Nolf, W., Abbassi, L., Crozes, T., Motte, J.-F., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), European Synchrotron Radiation Facility (ESRF), Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and Rayet, Béatrice
Subjects: [PHYS.PHYS.PHYS-MED-PH] Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.PHYS.PHYS-MED-PH]Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2017

31. Scanning Thermal Microscopy (SThM) using micro-fabricated thermometric tip

Author: Swami, Rahul, Julié, Gwénäelle, Le Denmat, Simon, Motte, Jean-François, Chapuis, Pierre-Olivier, Gomes, Séverine, Bourgeois, Olivier, Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Optique et microscopies (POM), Centre d'Energétique et de Thermique de Lyon (CETHIL), Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon, Thermodynamique et biophysique des petits systèmes (TPS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), and GOMES, Séverine
Subjects: [SPI]Engineering Sciences [physics], [SPI] Engineering Sciences [physics], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2017

32. Développement d’un hodoscope diamant au LPSC

Author: Marcatili, S., Bès, A., Bosson, G., Collot, J., Curtoni, S., Dauvergne, D., Gallin-Martel, L., Gallin-Martel, M. L., Hostachy, J. Y., Lacoste, A., Muraz, J. F., Rarbi, F. E., Rossetto, O., Romain Vuiart, Yamouni, M., Fontana, M., Krimmer, J., Testa, E., Salomé, M., Morse, J., Crozes, T., F Motte, J., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), European Synchrotron Radiation Facility (ESRF), Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and Rayet, Béatrice
Subjects: [PHYS.PHYS.PHYS-MED-PH] Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.PHYS.PHYS-MED-PH]Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2017

33. Synchrotron Bragg diffraction imaging characterization of synthetic diamond crystals for optical and electronic power device applications

Author: Jürgen Härtwig, Jean-Charles Arnault, B. Fernandez, Nicolas Tranchant, David Eon, José Baruchel, C. Barbay, T. A. Lafford, Thu Nhi Tran Thi, J. Morse, Damien Caliste, Christine Mer-Calfati, European Synchrotron Radiation Facility (ESRF), Laboratory of Atomistic Simulation (LSIM ), Modélisation et Exploration des Matériaux (MEM), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Semi-conducteurs à large bande interdite (SC2G ), Univ Johannesburg, Auckland Pk, Johannesburg, South Africa, Laboratoire Capteurs Diamant (LCD-LIST), Département Métrologie Instrumentation & Information (DM2I), Laboratoire d'Intégration des Systèmes et des Technologies (LIST), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, European Project: 640947,H2020,H2020-LCE-2014-1,GreenDiamond(2015), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Nanofabrication (NEEL - Nanofab), Semi-conducteurs à large bande interdite (NEEL - SC2G), Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA))
Subjects: Materials science, Synthetic diamond, thin film, Polishing, 02 engineering and technology, engineering.material, Bragg diffraction imaging, 01 natural sciences, General Biochemistry, Genetics and Molecular Biology, law.invention, Crystal, Optics, Lattice constant, diamond, topography, law, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, 0103 physical sciences, Diffraction topography, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, DISLOCATIONS, 010302 applied physics, business.industry, Diamond, Bragg's law, 021001 nanoscience & nanotechnology, X-ray diffraction, FRELON CAMERA, rocking curve imaging, X-ray crystallography, engineering, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Defect, 0210 nano-technology, business
Abstract: Bragg diffraction imaging enables the quality of synthetic single-crystal diamond substrates and their overgrown, mostly doped, diamond layers to be characterized. This is very important for improving diamond-based devices produced for X-ray optics and power electronics applications. The usual first step for this characterization is white-beam X-ray diffraction topography, which is a simple and fast method to identify the extended defects (dislocations, growth sectors, boundaries, stacking faults, overall curvatureetc.) within the crystal. This allows easy and quick comparison of the crystal quality of diamond plates available from various commercial suppliers. When needed, rocking curve imaging (RCI) is also employed, which is the quantitative counterpart of monochromatic Bragg diffraction imaging. RCI enables the local determination of both the effective misorientation, which results from lattice parameter variation and the local lattice tilt, and the local Bragg position. Maps derived from these parameters are used to measure the magnitude of the distortions associated with polishing damage and the depth of this damage within the volume of the crystal. For overgrown layers, these maps also reveal the distortion induced by the incorporation of impurities such as boron, or the lattice parameter variations associated with the presence of growth-incorporated nitrogen. These techniques are described, and their capabilities for studying the quality of diamond substrates and overgrown layers, and the surface damage caused by mechanical polishing, are illustrated by examples.
Published: 2017
Full Text: View/download PDF

34. Transport properties of thermoelectric Bi0.5Sb1.5Te3 and Bi2Te2.7Se0.3 thin films

Author: Nathalie Caillault, D. Bourgault, T. Crozes, Laurent Carbone, B. Schaechner, C. Giroud Garampon, Thermodynamique et biophysique des petits systèmes (TPS), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), and Nanofab (Nanofab)
Subjects: Materials science, Annealing (metallurgy), Mechanical Engineering, Metals and Alloys, Chemical vapor deposition, Thermoelectric materials, law.invention, Carbon film, Mechanics of Materials, law, Thermoelectric effect, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Materials Chemistry, Atomic composition, Crystallization, Composite material, Thin film, ComputingMilieux_MISCELLANEOUS
Abstract: Transport properties of as-deposited and annealed Bi 0.5 Sb 1.5 Te 3 (p-type) and Bi 2 Te 2.7 Se 0.3 (n-type) thin films have been studied. The p-type and n-type thin films were annealed between 150 and 300 °C. Temperature dependence of the transport properties and effect of annealing are described for both types. The role of the crystallization and the defects in relation with the atomic composition are studied for the different annealed thin films.
Published: 2014
Full Text: View/download PDF

35. MicroSQUID Force Microscopy in a Dilution Refrigerator

Author: Danny Hykel, Thierry Crozes, Klaus Hasselbach, Zhaosheng Wang, Gorky Shaw, K. F. Schuster, Pauline Castellazzi, beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science, Chinese Academy of Sciences [Changchun Branch] (CAS), Nanofab (Nanofab), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Magnétisme et Supraconductivité (MagSup), Institut de RadioAstronomie Millimétrique (IRAM), Centre National de la Recherche Scientifique (CNRS), Ministère des Affaires Etrangères, ANR-09-BLAN-0211,TETRAFER(2009), European Project, Nanofabrication (NEEL - Nanofab), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), and Magnétisme et Supraconductivité (NEEL - MagSup)
Subjects: Physics, Superconductivity, Field (physics), Condensed matter physics, Condensed Matter - Superconductivity, FOS: Physical sciences, Absolute value, SQUID, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Magnetic flux, law.invention, Superconductivity (cond-mat.supr-con), [PHYS.COND.CM-S]Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con], Scanning Microscopy, law, General Materials Science, Sensitivity (control systems), Dilution refrigerator, Tuning fork, Penetration depth
Abstract: We present a new generation of a scanning MicroSQUID microscope operating in an inverted dilution refrigerator. The MicroSQUIDs have a size of 1.21$ \ \mu$m\textsuperscript{2} and a magnetic flux sensitivity of 120 $\mu\Phi_{0} / \sqrt{\textrm{Hz}}$ and thus a field sensitivity of %$550^{-6} \ \Phi_{0} / \sqrt{\textrm{Hz}}$ 550$ \ \mu \textrm{G}/ \sqrt{\textrm{Hz}}$. The scan range at low temperatures is about 80 $\mu$m and a coarse displacement of 5 mm in x and y direction has been implemented. The MicroSQUID-to-sample distance is regulated using a tuning fork based force detection. A MicroSQUID-to-sample distance of 420 nm has been obtained. The reliable knowledge of this distance is necessary to obtain a trustworthy estimate of the absolute value of the superconducting penetration depth. An outlook will be given on the ongoing direction of development.
Published: 2014
Full Text: View/download PDF

36. Modal Decomposition in Goalpost Micro/Nano Electro-Mechanical Devices

Author: Christophe Blanc, Olivier Bourgeois, Sébastien Dufresnes, Henri Godfrin, Martial Defoort, Kunal Lulla, Eddy Collin, Jean Guidi, Ultra-basses températures (UBT), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Thermodynamique et biophysique des petits systèmes (TPS), Informatique et Réseaux (InfoLab), and Nanofab (Nanofab)
Subjects: Physics, Condensed Matter - Mesoscale and Nanoscale Physics, Silicon, Acoustics, FOS: Physical sciences, chemistry.chemical_element, dynamics, Condensed Matter Physics, Resonance (particle physics), Atomic and Molecular Physics, and Optics, Flexural strength, chemistry, resonance modes, Normal mode, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), micro/nano-mechanics, Micro nano, Limit (music), General Materials Science, [PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall], Mechanical devices, Free parameter
Abstract: We have studied the first three symmetric out-of-plane flexural resonance modes of a goalpost silicon micro-mechanical device. Measurements have been performed at 4.2K in vacuum, demonstrating high Qs and good linear properties. Numerical simulations have been realized to fit the resonance frequencies and produce the mode shapes. These mode shapes are complex, since they involve distortions of two coupled orthogonal bars. Nonetheless, analytic expressions have been developed to reproduce these numerical results, with no free parameters. Owing to their generality they are extremely helpful, in particular to identify the parameters which may limit the performances of the device. The overall agreement is very good, and has been verified on our nano-mechanical version of the device., Journal of Low Temperature Physics (2013)
Published: 2013
Full Text: View/download PDF

37. Detection of a magnetic bead by hybrid nanodevices using scanning gate microscopy

Author: Héctor Corte-León, Olga Kazakova, Alessandra Manzin, Vladimir Antonov, F. Marchi, J.-F. Motte, Patryk Krzysteczko, Hans Werner Schumacher, National Physical Laboratory [Teddington] (NPL), Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and Nanofab (Nanofab )
Subjects: 010302 applied physics, Permalloy, [PHYS]Physics [physics], Materials science, Condensed matter physics, Magnetoresistance, General Physics and Astronomy, Scanning gate microscopy, 02 engineering and technology, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, 021001 nanoscience & nanotechnology, 01 natural sciences, lcsh:QC1-999, Magnetic field, Condensed Matter::Materials Science, Transverse plane, Ferromagnetism, Hall effect, 0103 physical sciences, 0210 nano-technology, Micromagnetics, lcsh:Physics, ComputingMilieux_MISCELLANEOUS
Abstract: Hybrid ferromagnetic(Py)/non-magnetic metal(Au) junctions with a width of 400 nm are studied by magnetotransport measurements, magnetic scanning gate microscopy (SGM) with a magnetic bead (MB) attached to the probe, and micromagnetic simulations. In the transverse geometry, the devices demonstrate a characteristic magnetoresistive behavior that depends on the direction of the in plane magnetic field, with minimum/maximum variation when the field is applied parallel/perpendicular to the Py wire. The SGM is performed with a NdFeB bead of 1.6 μm diameter attached to the scanning probe. Our results demonstrate that the hybrid junction can be used to detect this type of MB. A rough approximation of the sensing volume of the junction has the shape of elliptical cylinder with the volume of ∼1.51 μm3. Micromagnetic simulations coupled to a magnetotransport model including anisotropic magnetoresistance and planar Hall effects are in good agreement with the experimental findings, enabling the interpretation of the SGM images.
Published: 2016
Full Text: View/download PDF

38. UV Photosensing Characteristics of Nanowire-Based GaN/AlN Superlattices

Author: Pascal Hille, Jörg Schörmann, Maria de la Mata, Martien Den Hertog, Eva Monroy, Thierry Fournier, Jonas Lähnemann, Jordi Arbiol, Martin Eickhoff, PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Matériaux, Rayonnements, Structure (NEEL - MRS), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofabrication (NEEL - Nanofab), Justus-Liebig-Universität Gießen = Justus Liebig University (JLU), Departament d'Electrònica (Universitat de Barcelona) (EME/CeRMAE/IN2UB), Universitat de Barcelona (UB), Nanophysique et Semiconducteurs (NPSC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Matériaux, Rayonnements, Structure (MRS), Nanofab (Nanofab ), Justus-Liebig-Universität Gießen (JLU), Departament d'Electrònica (EME/CeRMAE/IN2UB), European Research Council, Generalitat de Catalunya, Ministerio de Economía y Competitividad (España), Agence Nationale de la Recherche (France), and State of Hesse
Subjects: Materials science, Superlattice, Nanowire, FOS: Physical sciences, Bioengineering, 02 engineering and technology, Photodetection, UV photodetector, 01 natural sciences, GaN, Photosensitivity, 0103 physical sciences, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), General Materials Science, AlN, ComputingMilieux_MISCELLANEOUS, 010302 applied physics, Photocurrent, [PHYS]Physics [physics], Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics, Photoluminescence spectroscopy, business.industry, Nanowires, Mechanical Engineering, Materials Science (cond-mat.mtrl-sci), Heterojunction, General Chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Transmission electron microscopy, Photocurrent spectroscopy, Optoelectronics, 0210 nano-technology, business, Dark current
Abstract: arXiv:1604.07978v2, We have characterized the photodetection capabilities of single GaN nanowires incorporating 20 periods of AlN/GaN:Ge axial heterostructures enveloped in an AlN shell. Transmission electron microscopy confirms the absence of an additional GaN shell around the heterostructures. In the absence of a surface conduction channel, the incorporation of the heterostructure leads to a decrease of the dark current and an increase of the photosensitivity. A significant dispersion in the magnitude of dark currents for different single nanowires is attributed to the coalescence of nanowires with displaced nanodisks, reducing the effective length of the heterostructure. A larger number of active nanodisks and AlN barriers in the current path results in lower dark current and higher photosensitivity and improves the sensitivity of the nanowire to variations in the illumination intensity (improved linearity). Additionally, we observe a persistence of the photocurrent, which is attributed to a change of the resistance of the overall structure, particularly the GaN stem and cap sections. As a consequence, the time response is rather independent of the dark current., Financial support from the EU ERC-SG “TeraGaN” (#278428) and ANR JCJC COSMOS (ANR-12-JS10-0002) is acknowledged. Furthermore, the groups in Grenoble and Giessen received traveling support from the DAAD/Campus France program Procope. P.H., J.S., and M.E. acknowledge financial support within the LOEWE program of excellence of the Federal State of Hessen (project initiative STORE-E). M.d.l.M. and J.A. acknowledge funding from Generalitat de Catalunya 2014 SGR 1638 and the Spanish MINECO MAT2014-51480-ERC (e-ATOM) and Severo Ochoa Excellence Program.
Published: 2016
Full Text: View/download PDF

39. A quantitative study of magnetic interactions between a micro-magnet array and individual magnetic micro-particles by scanning particle force microscopy

Author: D. Givord, H Marelli, Florence Marchi, Svetlana Ponomareva, B Royer, Nora M. Dempsey, J.-F. Motte, Frédéric Dumas-Bouchiat, Andre Dias, Micro et NanoMagnétisme (MNM ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Universidade Nova de Lisboa = NOVA University Lisbon (NOVA), Nanofab (Nanofab ), IRCER - Axe 2 : procédés plasmas et lasers (IRCER-AXE2), Institut de Recherche sur les CERamiques (IRCER), Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Nano-Optique et Forces (NOF ), and Tomsk Polytechnic University (Russia)
Subjects: Materials science, magnetic force simulations, micro-particle probe fabrication, 02 engineering and technology, Magnetic particle inspection, [SPI]Engineering Sciences [physics], Magnetization, Microscopy, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, Electrical and Electronic Engineering, Condensed matter physics, Mechanical Engineering, force quantification, Hard spheres, 021001 nanoscience & nanotechnology, Electronic, Optical and Magnetic Materials, Magnetic field, Mechanics of Materials, Magnet, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Magnetic nanoparticles, hard micro-magnet array, 0210 nano-technology, magnetic particle force microscopy, Superparamagnetism
Abstract: International audience; Magnetic particle force microscopy has been used to measure magnetic interactions between an array of thermomagnetically patterned hard micro-magnets and both hard magnetic and superparamagnetic microspheres. Maximum interaction forces are experienced when the microspheres scan over the interface between reversed and non-reversed zones, where the stray magnetic field produced by the micro-magnet array is maximum. Comparison of experimental and simulated force maps of the hard spheres is used to validate assumptions concerning the remanent magnetisation and depth of the reversed zones. This information is in turn used to deduce the content of magnetic nanoparticles in the superparamagnetic spheres. Asymmetries in the experimental force maps of hard spheres are attributed to (i) the existence of a weak in-plane component of the force and (ii) the fact that the transition between two regions with opposite magnetization direction is not abrupt.
Published: 2018
Full Text: View/download PDF

40. Magnetization reversal of a single cobalt cluster using a RF field pulse

Author: Véronique Dupuis, T. Fournier, Cécile Raufast, Edgar Bonet, Wolfgang Wernsdorfer, T. Crozes, E. Bernstein, Alexandre Tamion, Laboratoire de Physique de la Matière Condensée et Nanostructures (LPMCN), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Circuits électroniques quantiques Alpes (QuantECA), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), and Nanofab (Nanofab)
Subjects: [PHYS]Physics [physics], Physics, Spins, Condensed matter physics, Resonance, 02 engineering and technology, Nanosecond, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Electronic, Optical and Magnetic Materials, Pulse (physics), Geomagnetic reversal, law.invention, Magnetic field, SQUID, Magnetic anisotropy, law, 0103 physical sciences, 010306 general physics, 0210 nano-technology
Abstract: International audience; Technological improvements require the understanding of dynamical magnetization reversal processes at the nanosecond time scales. In this paper, we present the first magnetization reversal measurements performed on a single cobalt cluster (counting only a thousand of spins), using the micro-superconducting quantum interference device (SQUID) technique by applying a constant magnetic field combined with a radio-frequency (RF) field pulse. First of all, we present the different technical steps necessary to detect the magnetic reversals at low temperature (T = 35 mK) of a well-defined nanoparticle prepared by low energy clusters beam deposition (LECBD). We previously showed that the three-dimensional (3D)-switching Stoner-Wohlfarth astroid represents the magnetic anisotropy of the nanoparticle. Then, an improved device coupled with a gold stripeline, allow us to reverse such macrospin, using a RF pulse. A qualitative understanding of the magnetization reversal by non-linear resonance has been obtained with the Landau-Lifschitz-Gilbert (LLG) equation.
Published: 2010
Full Text: View/download PDF

41. Magnetic scanning gate microscopy of a domain wall nanosensor using microparticle probe

Author: F. Marchi, J.-F. Motte, Boris Gribkov, Olga Kazakova, Vladimir Antonov, Hans Werner Schumacher, Patryk Krzysteczko, Héctor Corte-León, National Physical Laboratory [Teddington] (NPL), Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and Nanofab (Nanofab )
Subjects: 010302 applied physics, [PHYS]Physics [physics], Nanostructure, Materials science, Silicon, business.industry, chemistry.chemical_element, Nanotechnology, Scanning gate microscopy, 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Electronic, Optical and Magnetic Materials, Domain wall (magnetism), Neodymium magnet, chemistry, Electrical resistance and conductance, Nanosensor, 0103 physical sciences, Optoelectronics, Magnetic force microscope, 0210 nano-technology, business, ComputingMilieux_MISCELLANEOUS
Abstract: We apply the magnetic scanning gate microscopy (SGM) technique to study the interaction between a magnetic bead (MB) and a domain wall (DW) trapped in an L-shaped magnetic nanostructure. Magnetic SGM is performed using a custom-made probe, comprising a hard magnetic NdFeB bead of diameter 1.6 µm attached to a standard silicon tip. The MB–DW interaction is detected by measuring changes in the electrical resistance of the device as a function of the tip position. By scanning at different heights, we create a 3D map of the MB–DW interaction and extract the sensing volume for different widths of the nanostructure's arms. It is shown that for 50 nm wide devices the sensing volume is a cone of 880 nm in diameter by 1.4 µm in height, and reduces down to 800 nm in height for 100 nm devices with almost no change in its diameter.
Published: 2016
Full Text: View/download PDF

42. Reversibility Of Superconducting Nb Weak Links Driven By The Proximity Effect In A Quantum Interference Device

Author: Thierry Fournier, Hervé Courtois, Nikhil Kumar, Clemens Winkelmann, Anjan K. Gupta, Department of Physics [Kanpur], Indian Institute of Technology Kanpur (IIT Kanpur), Nanofab (Nanofab), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), and Nano-Electronique Quantique et Spectroscopie (QuNES)
Subjects: Physics, Superconductivity, Condensed matter physics, Condensed Matter - Superconductivity, Phase (waves), FOS: Physical sciences, General Physics and Astronomy, Nanotechnology, 02 engineering and technology, 021001 nanoscience & nanotechnology, Small amplitude, 01 natural sciences, [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph], 3. Good health, Superconductivity (cond-mat.supr-con), Condensed Matter::Superconductivity, Heat generation, 0103 physical sciences, Thermal, Quantum interference, Proximity effect (superconductivity), Critical current, 010306 general physics, 0210 nano-technology
Abstract: We demonstrate the role of proximity effect in the thermal hysteresis of superconducting constrictions. From the analysis of successive thermal instabilities in the transport characteristics of micron-size superconducting quantum interference devices with a well-controlled geometry, we obtain a complete picture of the different thermal regimes. These determine whether the junctions are hysteretic or not. Below the superconductor critical temperature, the critical current switches from a classical weak-link behavior to one driven by the proximity effect. The associated small amplitude of the critical current makes it robust with respect to the heat generation by phase-slips, leading to a non-hysteretic behavior., 6 pages, 5 figures, including Supplementary Information
Published: 2015
Full Text: View/download PDF

43. A large area diamond-based beam tagging hodoscope for ion therapy monitoring

Author: O. Rossetto, Jean-François Muraz, M.-L. Gallin-Martel, L. Abbassi, J.-F. Motte, Ana Lacoste, G. Bosson, R. Vuiart, Denis Dauvergne, F. Rarbi, M. Yamouni, S. Curtoni, John Morse, J. Krimmer, Sara Marcatili, M. Fontana, J. Collot, W. De Nolf, J-Y. Hostachy, L. Gallin-Martel, A. Bes, T. Crozes, Etienne Testa, Murielle Salomé, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofab (Nanofab ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), European Synchrotron Radiation Facility (ESRF), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Materials science, SYNTHETIC DIAMOND DETECTORS, Physics::Instrumentation and Detectors, QC1-999, charge collection efficiency, Chemical vapor deposition, engineering.material, 01 natural sciences, CHARGE COLLECTION EFFICIENCY, Particle detector, 030218 nuclear medicine & medical imaging, ON-LINE MONITORING OF HADRON THERAPY, 03 medical and health sciences, 0302 clinical medicine, Optics, Hodoscope, TIME RESOLUTION, 0103 physical sciences, Synthetic diamond detectors, time resolution, 010308 nuclear & particles physics, business.industry, Physics, Detector, Diamond, on-line monitoring of hadron therapy, Bunches, Beamline, [PHYS.PHYS.PHYS-MED-PH]Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], engineering, Physics::Accelerator Physics, integrated fast read out electronics, business, Beam (structure), INTEGRATED FAST READ OUT ELECTRONICS
Abstract: International audience; The MoniDiam project is part of the French national collaboration CLaRyS (Contrôle en Ligne de l'hAdronthérapie par RaYonnements Secondaires) for on-line monitoring of hadron therapy. It relies on the imaging of nuclear reaction products that is related to the ion range. The goal here is to provide large area beam detectors with a high detection efficiency for carbon or proton beams giving time and position measurement at 100 MHz count rates (beam tagging hodoscope). High radiation hardness and intrinsic electronic properties make diamonds reliable and very fast detectors with a good signal to noise ratio. Commercial Chemical Vapor Deposited (CVD) poly-crystalline, heteroepitaxial and monocrystalline diamonds were studied. Their applicability as a particle detector was investigated using α and β radioactive sources, 95 MeV/u carbon ion beams at GANIL and 8.5 keV X-ray photon bunches from ESRF. This facility offers the unique capability of providing a focused (~1 µm) beam in bunches of 100 ps duration, with an almost uniform energy deposition in the irradiated detector volume, therefore mimicking the interaction of single ions. A signal rise time resolution ranging from 20 to 90 ps rms and an energy resolution of 7 to 9% were measured using diamonds with aluminum disk shaped surface metallization. This enabled us to conclude that polycrystalline CVD diamond detectors are good candidates for our beam tagging hodoscope development. Recently, double-side stripped metallized diamonds were tested using the XBIC (X Rays Beam Induced Current) setup of the ID21 beamline at ESRF which permits us to evaluate the capability of diamond to be used as position sensitive detector. The final detector will consist in a mosaic arrangement of double-side stripped diamond sensors read out by a dedicated fast-integrated electronics of several hundreds of channels. Index Terms— Synthetic diamond detectors, on-line monitoring of hadron therapy, charge collection efficiency, time resolution, integrated fast read out electronics
Published: 2018
Full Text: View/download PDF

44. Thermoelectric Nanowires Based on Bismuth Telluride

Author: Daniel Bourgault, M. Ben Khedim, Valerie Serradeil, T. Fournier, Laurent Cagnon, Micro et NanoMagnétisme (MNM), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), STMicroelectronics [Rousset] (ST-ROUSSET), Nanofab (Nanofab), and Thermodynamique et biophysique des petits systèmes (TPS)
Subjects: 010302 applied physics, [PHYS]Physics [physics], Antimony telluride, Materials science, Analytical chemistry, Nanowire, chemistry.chemical_element, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Bismuth, chemistry.chemical_compound, chemistry, Selenide, 0103 physical sciences, Thermoelectric effect, Bismuth telluride, Vapor–liquid–solid method, 0210 nano-technology, Tellurium, ComputingMilieux_MISCELLANEOUS
Abstract: Bismuth antimony telluride (BixSb2-xTe3) and bismuth tellurium selenide (Bi2Te3-xSex) nanowires, witha 60nmdiameter, have been potentiostatically electrodeposited from perchloric baths using anodic alumina membrane. For n-type nanowires, gradual selenium concentration studies have established which one gives the closest stoichiometry to Bi2Te2.7Se0.3. Seebeck coefficients reached-70 μV/K after annealing. For p-type nanowires, some samples show Seebeck coefficients higher than +160 μV/K. Nanowires morphology and stoichiometry were investigated by SEM and EDX, while structure and phases were determined by XRD.First electrical conductivity measurements exhibit a high resistivity for p-type nanowires.The problem of contact resistance between nanowires and metals is revealed through the resistance measurement of single and assembled nanowires. This work reveals the strong dependence of nanowires chemical composition and morphology on deposition potential. For the low deposition over-potential, the deposition rate is fairly slow and nanowires are highly oriented with a compact cylindrical aspect; whereas for higher deposition over-potentials, fast growth rate leads to dendritic polycrystalline structures.
Published: 2015
Full Text: View/download PDF

45. Probing Bogoliubov quasiparticles in superfluid $^3$He with a 'vibrating-wire like' MEMS device

Author: Defoort, M., Dufresnes, S., Ahlstrom, S. L., Bradley, D. I., Haley, R. P., Guénault, A. M., Guise, E. A., Pickett, G. R., Poole, M., Woods, A. J., Tsepelin, V., Fisher, S. N., Godfrin, H., Collin, E., Ultra-basses températures (UBT), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanofab (Nanofab ), Department of Physics [Lancaster], and Lancaster University
Subjects: [PHYS]Physics [physics], Condensed Matter - Mesoscale and Nanoscale Physics, Andreev reflection, superfluid 3 He, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), FOS: Physical sciences, sensors, micro-mechanics, vibrating structures
Abstract: We have measured the interaction between superfluid $^3$He-B and a micro-machined goalpost-shaped device at temperatures below $0.2\,T_c$. The measured damping follows well the theory developed for vibrating wires, in which the Andreev reflection of quasiparticles in the flow field around the moving structure leads to a nonlinear frictional force. At low velocities the damping force is proportional to velocity while it tends to saturate for larger excitations. Above a velocity of 2.6$\,$mms$^{-1}$ the damping abruptly increases, which is interpreted in terms of Cooper-pair breaking. Interestingly, this critical velocity is significantly lower than reported with other mechanical probes immersed in superfluid $^3$He. Furthermore, we report on a nonlinear resonance shape for large motion amplitudes that we interpret as an inertial effect due to quasiparticle friction, but other mechanisms could possibly be invoked as well., Comment: J. of Low Temp. Phys. in press
Published: 2015
Full Text: View/download PDF

46. Transverse voltage in a quasi-one-dimensional NbSe3 conductor with a charge density wave in zero magnetic field

Author: Pierre Monceau, A. A. Sinchenko, Thierry Crozes, Kotelnikov Institute of Radio Engineering and Electronics (IRE), Russian Academy of Sciences [Moscow] (RAS), Magnétisme et Supraconductivité (MagSup), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Nanofab (Nanofab), and Laboratoire international associé 'Physique des états électroniques cohérents en matière condensée (PEECMC) entre le CNRS et l'Académie des Sciences de Russie.
Subjects: Physics, Phase transition, Physics and Astronomy (miscellaneous), Condensed matter physics, Peierls transition, Optical field, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, 01 natural sciences, 010305 fluids & plasmas, Magnetic field, Electric field, 0103 physical sciences, Electric potential, [PHYS.COND.CM-SCE]Physics [physics]/Condensed Matter [cond-mat]/Strongly Correlated Electrons [cond-mat.str-el], 010306 general physics, Charge density wave, Voltage
Abstract: The appearance of an electric field component normal to the transport current has been revealed in NbSe3 single crystals in the region of phase transitions to the Peierls state. It has been shown that the arising transverse voltage is V xy ∝ dR xx /dT. This effect is explained by the redistribution of the current caused by the spatial inhomogeneity of the critical temperature of the Peierls transition.
Published: 2011
Full Text: View/download PDF

47. Proximity-Effect Driven Reversibility in Superconducting Constrictions

Author: Kumar, Nikhil, Fournier, Thierry, Courtois, Hervé, Winkelmann, Clemens, Gupta, A., Indian Institute of Technology Kanpur (IIT Kanpur), Nanofab (Nanofab), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Nano-Electronique Quantique et Spectroscopie (QuNES), and ANR-12-BS10-0007,NANOQUARTETS,Production de Quartets d'Electrons dans des Bijonctions Josephson(2012)
Subjects: Condensed Matter::Superconductivity, [PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall]
Abstract: We demonstrate the role of proximity effect in the thermal hysteresis of superconducting con-strictions. From the analysis of successive thermal instabilities in the transport characteristics of micron-size superconducting quantum interference devices with a well-controlled geometry, we ob-tain a complete picture of the different thermal regimes. These determine whether the junctions are hysteretic or not. Below the superconductor critical temperature, the critical current switches from a classical weak-link behavior to one driven by the proximity effect. The associated small amplitude of the critical current makes it robust with respect to the heat generation by phase-slips, leading to a non-hysteretic behavior.
Published: 2014

48. Slippage and boundary layer probed in an almost ideal gas by a nanomechanical oscillator

Author: Martial Defoort, Kunal Lulla, Eddy Collin, Thierry Crozes, Olivier Bourgeois, Olivier Maillet, Ultra-basses températures (UBT), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Nanofab (Nanofab), and Thermodynamique et biophysique des petits systèmes (TPS)
Subjects: Monatomic gas, General Physics and Astronomy, FOS: Physical sciences, 02 engineering and technology, 01 natural sciences, Physics::Fluid Dynamics, 0103 physical sciences, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), 010306 general physics, [PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall], Physics, Condensed Matter - Mesoscale and Nanoscale Physics, Laminar flow, Mechanics, nano-fluidics, Dissipation, 021001 nanoscience & nanotechnology, Ideal gas, nano-mechanics, Boundary layer, Classical mechanics, Orders of magnitude (time), Slippage, Knudsen number, 0210 nano-technology, low temperatures
Abstract: We have measured the interaction between $^4$He gas at 4.2$~$K and a high-quality nano-electro-mechanical string device for its first 3 symmetric modes (resonating at 2.2$~$MHz, 6.7$~$MHz and 11$~$MHz with quality factor $Q > 0.1$ million) over almost 6 orders of magnitude in pressure. This fluid can be viewed as the best experimental implementation of an almost-ideal monoatomic and inert gas which properties are tabulated. The experiment ranges from high pressure where the flow is of laminar Stokes-type presenting slippage, down to very low pressures where the flow is molecular. In the molecular regime, when the mean-free-path is of the order of the distance between the suspended nano-mechanical probe and the bottom of the trench we resolve for the first time the signature of the boundary (Knudsen) layer onto the measured dissipation. Our results are discussed in the framework of the most recent theories investigating boundary effects in fluids (both analytic approaches and Monte-Carlo DSMC simulations)., Editor's suggestion
Published: 2014
Full Text: View/download PDF

49. Heat transmission between a profiled nanowire and a thermal bath

Author: Thierry Fournier, Jean-Savin Heron, Olivier Bourgeois, Christophe Blanc, Thermodynamique et biophysique des petits systèmes (TPS), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), and Nanofab (Nanofab)
Subjects: Thermal contact conductance, [PHYS]Physics [physics], Materials science, Physics and Astronomy (miscellaneous), Condensed matter physics, Thermal resistance, Nanowire, Thermal contact, Nanotechnology, Thermal conduction, Thermal conductivity, Thermal, Heat transfer, ComputingMilieux_MISCELLANEOUS
Abstract: Thermal transport through profiled and abrupt contacts between a nanowire and a reservoir has been investigated by thermal conductance measurements. It is demonstrated that above 1 K the transmission coefficients are identical between abrupt and profiled junctions. This shows that the thermal transport is principally governed by the nanowire itself rather than by the resistance of the thermal contact. These results are perfectly compatible with the previous theoretical models. The thermal conductance measured at sub-Kelvin temperatures is discussed in relation to the universal value of the quantum of thermal conductance.
Published: 2014
Full Text: View/download PDF

50. Transmission and reflection characteristics of metal-coated optical fiber tip pairs

Author: Jean-Baptiste Decombe, Serge Huant, Joël Chevrier, Jean-François Motte, Jean-François Bryche, Jochen Fick, Nano-Optique et Forces (NOF), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), and Nanofab (Nanofab)
Subjects: Materials science, Optical fiber, Nanophotonics and photonic crystals, FOS: Physical sciences, Physics::Optics, 02 engineering and technology, Micro-optics, 01 natural sciences, Focused ion beam, law.invention, 010309 optics, Optics, Optical microscope, law, 0103 physical sciences, Fiber, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, Electrical and Electronic Engineering, Engineering (miscellaneous), [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, Coupling (electronics), OCIS, Optical tweezers, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Reflection (physics), Near-field scanning optical microscope, 0210 nano-technology, business, Near-field microscopy, Optics (physics.optics), Physics - Optics
Abstract: International audience; The optical transmission and reflection in between two metalized optical fiber tips is studied in the optical near-field and far-field domains. Besides aluminum-coated tips for near-field scanning optical microscopy (NSOM), specifically developed gold-coated fiber tips cut by focused ion beam (FIB) are investigated. Transverse transmission maps of sub-wavelength width clearly evidence optical near-field coupling between the tips for short tip distances and becomes essentially Gaussian-shaped for larger distances in the far-field regime. Moreover concentric reflection fringes observed for NSOM-type tips illustrate the influence of the receiving fiber tip on the emission pattern of the source tip.
Published: 2014
Full Text: View/download PDF

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Journal

Database

Publisher

71 results on '"Nanofab (Nanofab )"'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources